.ai_box {
  .hover {
    transition: 0.3s;
    cursor: pointer;
    &:hover {
      transform: scale(1.1);
    }
  }
  .handle_class {
    /* 隐藏垂直滚动条 */
    ::-webkit-scrollbar {
      width: 0;
    }

    /* 隐藏水平滚动条 */
    ::-webkit-scrollbar {
      height: 0;
    }
  }
  .chat_window {
    ::-webkit-scrollbar {
      width: 7px;
    }
  }
}

/* 定义过渡样式 */
.fade-enter-active, .fade-leave-active {
  transition: opacity .3s;
}
.fade-enter, .fade-leave-to /* .fade-leave-active for <=2.1.8 */ {
  opacity: 0;
}

::-webkit-input-placeholder {
  /* Chrome/Opera/Safari */
  color: #c4c4c4;
}
::-moz-placeholder {
  /* Firefox 19+ */
  color: #c4c4c4;
}
:-ms-input-placeholder {
  /* IE 10+ */
  color: #c4c4c4;
}
:-moz-placeholder {
  /* Firefox 18- */
  color: #c4c4c4;
}